.RL-wrapper{
    position: relative  ;
    margin: 0 auto;
    width: 1920px;
    height: 900px;
    background-image: url("../img/backgroud.png");
    background-position: center;
}
/* 登录页面 */
.RL {
    width: 600px;
    height: 600px;
    position: absolute;
    right: 200px;
    top: 100px;
    border-radius: 10px;
    font-size: 20px;
}

/* 登录/切换 按钮 */
.change {
    cursor: pointer;
    position: absolute;
    bottom: 5px;
    left: 200px;
    width: 200px;
    height: 50px;
    line-height: 50px;
    text-align: center;
    background-color: #0f9cf5;
    border-radius: 10px;
    transition: all 0.4s;
    color: black;
}

/* 旋转体，包含正反面 */
.over {
    position: relative;
    text-align: center;
    width: 100%;
    height: 500px;
    transform-style: preserve-3d;
    transition: all 1.6s ease;
}
/* 变化按钮点击时实现翻转 */
#choose:checked~.over {
    transform: rotateY(180deg);
}
/* 对输入框进行样式设计 */
input {
    box-sizing: border-box;
    padding: 0 10px;
    width: 70%;
    height: 50px;
    background-color: #0f9cf5;
    border-radius: 10px;
    border: none;
    outline: none;
    transition: all 0.4s;
    font-size: 20px;
    color: black;   
}
#remeber-wrapper{
    display: block;
}
#remeber-me{
    width: auto;
    height: auto;
}

/* 光标移动到输入框上时浮现效果 */
input:hover,
label:hover {
    box-shadow: 0px 0px 20px #0f9cf5;
}
/* 对正反面样式进行设计 */
.form {
    width: 100%;
    height: 100%;
    border-radius: 10px;
    background-color: rgb(255 255 255 / 36% );
    box-shadow: 0 0px 10px rgb(117 134 176 / 60%);
    position: absolute;
}
/* 边框流光效果 */
@keyframes borderchange {
    0% {
        clip: rect(0px, 610px, 4px, 0px);
    }

    12.5% {
        clip: rect(0px, 4px, 4px, 0px);
    }

    25% {
        clip: rect(0px, 4px, 510px, 0px);
    }

    37.5% {
        clip: rect(506px, 4px, 510px, 0px);
    }

    50% {
        clip: rect(506px, 610px, 510px, 0px);
    }

    62.5% {
        clip: rect(506px, 610px, 510px, 606px)
    }

    75% {
        clip: rect(0px, 610px, 510px, 606px);
    }

    87.5% {
        clip: rect(0px, 610px, 4px, 606px);
    }

    100% {
        clip: rect(0px, 610px, 4px, 0px);
    }
}
/* 通过伪类设置边框实现边框流光 */
.form::before,
.form::after {
    z-index: -1;
    content: "";
    border: 4px solid #0f9cf5;
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    bottom: 0;
    margin: -5px;
    animation: borderchange 4s infinite linear;
    border-radius: 10px;
}

.form::after {
    animation: borderchange 4s 2s infinite linear;
    border-color: #fdd155;
}
/* 对输入框下的提示信息进行样式设计 */
input+p {
    border-radius: 8px;
    margin: 10px auto 20px;
    width: 70%;
    background-color: #0f9cf5;
    text-align: start;
    font-size: 30px;
}

h1 {
    margin: 30px 0 30px;
}

.login label{
    margin-top: 10px;
}
.login input {
    margin: 20px auto;
}
.login input:last-child{
    margin: 0;
}
.login input+p{
    margin: 10px auto;
}

.regist {
    transform: rotateY(180deg);
}